Not exactly.
The timing chain will not be off if you are talking about a GA16. It will only be removed from the camshaft sprockets. There are actually two chains. On that goes to the crank sprocket and idler sprocket, and one that goes from the other side of the idler to the camshaft sprockets. It simply lays around the idler sprocket and gets re-attached to cam sprockets afterwards. To remove the entire chain assembly is much more involved. I even swapped my cylinder head and the timing chain still did not have to be removed.
If you do choose to change it, it is more in depth than the cam install FWIW.
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